Package Management

How to Set Up Oracle Linux 8 for High-Performance Computing — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Oracle Linux 8 for High-Performance Computing

Introduction How to Set Up Oracle Linux 8 for High-Performance Computing on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

Read more
Ubuntu 18.04 — linux-gcp — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-gcp — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 September 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4325-1 Related CVEs: CVE-2019-19046 CVE-2020-8428 CVE-2019-19053 CVE-2019-19056 CVE-2019-19058 CVE-2019-19059 CVE-2019-19066 CVE-2019-19068  +12 more Upstream summary: It was discovered that the IPMI message handler implementation in the Linux kernel did not […]

Read more
Oracle Linux 8 — elfutils security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — elfutils security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3575)

🟢 Low   ⏱ 5–15 min  Last verified: 23 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3575 Related CVEs: CVE-2019-7146 CVE-2019-7149 CVE-2019-7664 CVE-2019-7150 CVE-2019-7665 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

Read more
Common Problems 115480

Network Service Misconfiguration Breaks Static IP

🟡 Medium   ⏱ 5–30 min  Last verified: 23 September 2020 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

Read more
How to Set Up a Network Bridge on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up a Network Bridge on SLES 12

Introduction This tutorial covers How to Set Up a Network Bridge on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]

Read more
Ubuntu 20.04 — speex — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — speex — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 September 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5280-1 Related CVEs: CVE-2020-23903 Upstream summary: It was discovered that Speex incorrectly handled certain WAV files. An attacker could possibly use this issue to cause a denial of service. Table […]

Read more
How to Install Drupal on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Drupal on Oracle Linux 8

Introduction This tutorial demonstrates how to Install Drupal on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with the default AppStream […]

Read more
Oracle Linux 8 — nodejs:16 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:16 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-5360)

🟠 High   ⏱ 15–60 min  Last verified: 22 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5360 Related CVEs: CVE-2022-25883 CVE-2023-32559 CVE-2023-32002 CVE-2023-32006 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

Read more
How to Implement Mandatory Access Control on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Implement Mandatory Access Control on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying implement mandatory access control on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Implement Mandatory Access Control on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

Read more
openSUSE Tumbleweed — cni-plugins — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — cni-plugins — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:1049-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-10749 Upstream summary: A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious containers in Kubernetes clusters to perform man-in-the-middle […]

Read more
CHAT